diff --git a/wp-includes/comment.php b/wp-includes/comment.php
index fb8c3193ae..dc5f1c15c4 100644
--- a/wp-includes/comment.php
+++ b/wp-includes/comment.php
@@ -600,7 +600,7 @@ function wp_allow_comment( $commentdata ) {
 	);
 	if ( $commentdata['comment_author_email'] ) {
 		$dupe .= $wpdb->prepare(
-			"OR comment_author_email = %s ",
+			"AND comment_author_email = %s ",
 			wp_unslash( $commentdata['comment_author_email'] )
 		);
 	}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index f56a32d5f9..d1153845d9 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-alpha-37712';
+$wp_version = '4.6-alpha-37713';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.